Three join HBO 'Veep' pilot

Three actors have joined the cast of forthcoming HBO comedy pilot Veep.

The project, written by The Thick of It creator Armando Iannucci, will star Julia Louis-Dreyfus as Selina Meyer, a former US Senator who becomes the Vice President.

Deadline now reports that Reid Scott, Tim Simons and Matt Walsh will all appear alongside Louis-Dreyfus and the previously cast Anna Chlumsky.

Scott, known for his roles in My Boys and The Big C, will play Dan Egan, a legend in Washington's political arena. Simons will appear as Jonah, a Presidential aide, while Outsourced star Walsh will play Mike, Senator Meyer's spokesman.

Former Seinfeld star Louis-Dreyfus will also act as a producer on Veep.